Finding the Fourth Proportional to 1,212,445.85, 1,818,140.59 and 347,689.99
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Solution
The fourth proportional to 1,212,445.85, 1,818,140.59 and 347,689.99 is: 521,383.52
Step by Step Solution
- Step 1: Write the proportion equation
1,212,445.85 : 1,818,140.59 = 347,689.99 : x - Step 2: Convert to fraction form
1,212,445.85/1,818,140.59 = 347,689.99/x - Step 3: Cross multiply
1,212,445.85x = 1,818,140.59 × 347,689.99 - Step 4: Simplify right side
1,212,445.85x = 632,149,290,398.63 - Step 5: Solve for x
x = 632,149,290,398.63/1,212,445.85 - Step 6: Final answer
x = 521,383.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.